CN207486483U

CN207486483U - A kind of compact-sized efficient lamp of heat dissipation

Info

Publication number: CN207486483U
Application number: CN201721590986.8U
Authority: CN
Inventors: 刘燕忠
Original assignee: Guangdong Running And Creating Lighting Technology Co Ltd
Current assignee: Guangdong Running And Creating Lighting Technology Co Ltd
Priority date: 2017-11-23
Filing date: 2017-11-23
Publication date: 2018-06-12
Anticipated expiration: 2027-11-23

Abstract

The utility model discloses a kind of compact-sized efficient lamps of heat dissipation, including lamp holder, lampshade, the illuminator being arranged in lamp holder and the eyeglass being arranged in lampshade, further include the connector for connecting lamp holder with lampshade, connector includes the first tube body, the outer surface of first tube body is provided with several first protrusions, first protrusion is provided with the second protrusion for being clamped lampshade and the third protrusion for being clamped lamp holder backwards to the side of the first tube body, and the second protrusion and third protrusion are set gradually along the axis direction of the first tube body.The compact-sized efficient lamp of heat dissipation of one kind of the utility model, saves disassembly and assembly time, reduces dismounting difficulty.

Description

A kind of compact-sized efficient lamp of heat dissipation

Technical field

The utility model is related to fitting structure more particularly to a kind of compact-sized efficient lamps of heat dissipation.

Background technology

In the prior art, lamps and lanterns generally comprise the parts such as lamp holder, lampshade, illuminator, eyeglass, and illuminator is arranged on lamp holder It is interior, in eyeglass setting lampshade.Lamp holder can set thermal column to radiate.Lampshade and lamp holder are attached fixation by multiple screws And it is sealed using sealing ring.

However, screw dismounting takes and increases dismounting difficulty after screw corrosion.

Utility model content

The utility model aims to solve the problem that the technical issues of above-mentioned mentioned, provides a kind of compact-sized efficient lamp of heat dissipation, Disassembly and assembly time is saved, reduces dismounting difficulty.

The utility model is realized by following technical solution：

A kind of compact-sized efficient lamp of heat dissipation, including lamp holder, lampshade, the illuminator being arranged in lamp holder and is arranged on lamp Eyeglass in cover, further includes the connector for connecting lamp holder with lampshade, and connector includes the first tube body, the outer surface of the first tube body Several first protrusions are provided with, the first protrusion is provided with the second protrusion and use for being clamped lampshade backwards to the side of the first tube body In the third protrusion of clamping lamp holder, the second protrusion and third protrusion are set gradually along the axis direction of the first tube body.

Preferably, several first is raised along the circumferentially disposed of the first tube body, axis of several first protrusions along the first tube body Direction extends, and adjacent first convexes to form the first passage of heat dissipation.

Preferably, one end of the first tube body towards lampshade is provided with the first sealing ring, and the first sealing ring is abutted with eyeglass, the One tube body is provided with the first groove of accommodating first sealing ring.

Further, the side wall of the first groove connects the outer surface of the first tube body.

Further, the first protrusion is provided with the first limit convex limited to the radial direction of eyeglass close to the side of lampshade Portion.

Preferably, lampshade includes the second tube body, and the second inner surface of tube body is provided with several second protrusions, the second protrusion setting There is the second recess portion of the second protrusion of clamping, the second annulus, the outer surface of the second annulus and the second protrusion are provided in the second tube body Connection, the end face of the second annulus are abutted with eyeglass, and the second annulus is set gradually with the second recess portion along the axis direction of the second tube body, The quantity of second protrusion and position are correspondingly arranged with the first protrusion.

Preferably, lamp holder includes third tube body, and the inner surface of third tube body is provided with several third protrusions, and third protrusion is set The third recess portion of clamping third protrusion is equipped with, radiator is additionally provided in third tube body, radiator includes the 4th disk, the 4th circle The edge of disk is overlapped with third recess portion, and the end face of the 4th disk is abutted with the end face of the first tube body, the 4th disk and the first tube body Between be provided with the second sealing ring, the first tube body is provided with the second groove of accommodating second sealing ring, and the first protrusion is close to lamp holder Side be provided with the second stopper protrusion limited to the radial direction of the 4th disk.

Further, the side of the 4th disk towards the first tube body is provided with fourth annular plate, and fourth annular backboard is to the The side of four disks is connect with illuminator, and fourth annular plate is provided with the 4th housing of accommodating lens, and the 4th housing is provided with card Connect the first snap-arms of the inner surface of fourth annular plate and the second snap-arms of the outer surface of clamping fourth annular plate, the 4th disk The third annular groove of accommodating first snap-arms and the 4th annular groove of accommodating second snap-arms are provided with, third annular groove and the 4th annular groove are same Axis is set.

Further, the 4th disk is provided with several 4th thermal columns, several 4th heat dissipations backwards to the side of the first tube body Column extends to the outside of third tube body, and the 4th disk is provided with the 4th cooling fin of the 4th thermal column of connection, the 4th cooling fin Thickness is less than the radial dimension of the 4th thermal column.

Further, the surface of the 4th cooling fin is provided with the 4th of several axis directions extensions along the 4th thermal column Recess portion.

Advantageous effect is：Compared with prior art, the compact-sized efficient lamp of heat dissipation of one kind of this practicality passes through the company of setting Fitting, and then connector is made to pass through snap fit with lampshade and lamp holder and is connect, than screw is used to save disassembly and assembly time, promote assembling Efficiency；Also by setting the first tube body, the outer surface of the first tube body is provided with several first protrusions, and the first protrusion is backwards to the first pipe The side of body is provided with the second protrusion for being clamped lampshade and the third protrusion for being clamped lamp holder so that lampshade and lamp holder lead to Crossing rotation can connect with connector, do not need to lampshade and lamp holder is deformed, and lampshade and lamp holder is facilitated to be manufactured using metal, is carried High heat dissipation effect；Also by the way that the second protrusion and third protrusion is made to be set gradually along the axis direction of the first tube body, make connector with The assemble sequence of lampshade and lamp holder is unrestricted.

Description of the drawings

Specific embodiment of the present utility model is described in further detail below in conjunction with attached drawing, wherein：

Fig. 1 is a kind of structure diagram of compact-sized efficient lamp of heat dissipation of this practicality；

Fig. 2 is the decomposing state schematic diagram of Fig. 1；

Fig. 3 is the structure diagram of connector in Fig. 2；

Fig. 4 is the structure diagram of lampshade in Fig. 2；

Fig. 5 is the structure diagram of lamp holder in Fig. 2；

Fig. 6 is the structure diagram of radiator in Fig. 5 lamp holders.

Specific embodiment

As shown in Figure 1, a kind of lamp, including lamp holder 3, lampshade 2, the illuminator 9 being arranged in lamp holder 3, is arranged in lampshade 2 Eyeglass 8, illuminator 9 is limited by drawing not can indicate that.

For convenience of lamp holder 3 is connect with lampshade 2, it is additionally provided with the connector 1 for connecting lamp holder 3 and lampshade 2, connector 1 It is clamped with lampshade 2, connector 1 can be clamping with lamp holder 3 or be threadedly coupled, but be preferably similarly clamping, more save dress With the time.

Existing connection mode is threaded to, be not described in detail.

The present embodiment is by taking connector 1 and lampshade 2 and lamp holder 3 connect simultaneously for clamping as an example.

As shown in Figure 2 and Figure 3, connector 1 includes the first tube body 11, and the inside of the first tube body 11 forms accommodating illuminator 9, thoroughly The cavity of 7 grade parts of mirror.

The outer surface of first tube body 11 is provided with several first protrusions 12, beyond all doubt, 12 direction first of the first protrusion The outside of tube body 11.

To realize the connection of connector 1 and lampshade 2, the first protrusion 12 is provided with backwards to the side of the first tube body 11 for card Connect the second protrusion 13 of lampshade 2.

To realize the connection of connector 1 and lamp holder 3, the first protrusion 12 is additionally provided with backwards to the side of the first tube body 11 to be used for It is clamped the third protrusion 14 of lamp holder 3.

For convenience of assembling, the second protrusion 13 and third protrusion 14 are set gradually along the axis direction of the first tube body 11.Accordingly , the second protrusion 13 is positioned close to 2 side of lampshade, and third protrusion 14 is positioned close to 3 side of lamp holder.

This allows for connector 1 and the assembling of lampshade 2 and lamp holder 3 is independent of each other, and connector 1 can be with lampshade 2 and lamp holder 3 It assembles successively, connector 1 can also simultaneously be assembled with lampshade 2 and lamp holder 3.

Part between second protrusion 13 and third protrusion 14 should have difference in height with the outer surface of the first tube body 11, to increase Add the intensity of the first tube body 11, while increase the surface area of the first tube body 11, be conducive to radiate.

Certainly, under the extreme case that difference in height is zero, the part between the second protrusion 13 and third protrusion 14 can also It is exactly the outer surface of the first tube body 11, has no effect on assembling.

Intensity to increase by the first tube body 11 and the manufacturing convenient for connector 1, several first protrusions 12 are managed along first The axis direction extension of body 11.

To improve the heat dissipation effect of lamp, several first protrusions 12 are circumferentially disposed along the first tube body 11, adjacent first protrusion 12 form the first passage of heat dissipation.

This allows for the circumferential of connector 1 and forms the first passage equal with the first raised 12 quantity, both increases radiating surface Product is also convenient for making the air around connector 1 to generate directed flow, avoids heat dissipation uneven.

To realize the sealing of lamp, the first tube body 11 can be provided with the first sealing ring, the first sealing towards one end of lampshade 2 Circle is abutted with eyeglass 8.

Meanwhile first the reaction force of sealed ring deformation also cause lampshade 2 and 1 clamping of connector, connection is avoided to loosen.

To prevent the first sealing ring from moving, the first tube body 11 is provided with the first groove 15 of accommodating first sealing ring.

To increase the clamping force of connector 1 and lampshade 2, the side wall of the first groove 15 can connect the appearance of the first tube body 11 Face, to increase the width of the first groove 15, and then the width convenient for increasing by the first sealing ring.

Increase the clamping force of lampshade 2 and connector 1 by increasing the width of the first sealing ring, it is not easy to make the first sealing Circle is crushed, and the thickness of the first tube body 11 is also allowd to reduce.

For the first sealing ring is avoided to come off out of first groove 15, during assembling, it should be vertically arranged the first tube body 11, make First sealing ring is located at the top of the first tube body 11, this just needs from the top down to assemble lampshade 2 with connector 1.

However, eyeglass 8 is not fixed in lampshade 2, eyeglass 8 easily comes off and breaks out of lampshade 2, and directly by mirror Piece 8 is placed at connector 1, and eyeglass 8 easily deviates during assembling, also easily generates bump injury.In this regard, the first protrusion 12 leans on low beam The side of cover 2 can be provided with the first stopper protrusion 16 limited to the radial direction of eyeglass 8.

The surface of first stopper protrusion 16 can be the extension of 15 side wall of the first groove, and then the first stopper protrusion 16 may be used also It is convenient for assembly to be oriented to the first sealing ring.

For the concrete structure of lampshade 2, as shown in Figure 2, Figure 4 shows, lampshade 2 includes the second tube body 21, table in the second tube body 21 Face is provided with several second protrusions 22, and the second protrusion 22 is provided with the second recess portion 23 of the second protrusion 13 of clamping.

This is allowed for can be by mobile lampshade 2, and then the second protrusion 22 is made to be located between two the first protrusions 12, then Rotary lampshade 2 so that the second recess portion 23 is connected together with the second protrusion 13, is deformed that connection can be completed without lampshade 2, And then lampshade 2 may be used metal material and be made, more convenient heat dissipation.

To be limited to eyeglass 8, it is provided with the second annulus 24 in the second tube body 21, the outer surface of the second annulus 24 and the Two protrusions 22 connect, and the end face of the second annulus 24 abuts with eyeglass 8, and the second annulus 24 and the second recess portion 23 are along the second tube body 21 Axis direction is set gradually.

Second annulus 24 is set gradually with the second recess portion 23 along the axis direction of the second tube body 21, in other words, makes second Recess portion 23 is set to the second annulus 24 towards 1 side of connector.

It is flowed for convenience of air, the quantity of the second protrusion 22 and position are correspondingly arranged with the first protrusion 12.Adjacent second The space that protrusion 22 is formed can be connect with first passage, be flowed out at connector 1 convenient for air.

For the concrete structure of lamp holder 3, as shown in Fig. 2, Fig. 5, lamp holder 3 includes third tube body 31, third tube body 31 it is interior Surface is provided with several third protrusions 32, and third protrusion 32 is provided with the third recess portion 33 of clamping third protrusion 14.

This is allowed for can be by mobile lamp holder 3, and then third protrusion 32 is made to be located between two the first protrusions 12, then Rotary lampshade 2 so that third recess portion 33 is connected together with third protrusion 14, and very big deformation, and then lamp are generated without lamp holder 3 Seat 3 may be used metal material and be made, more convenient heat dissipation.

More usefully, lampshade 2, lamp holder 3 and connector 1 may be used same raw material and be made, and this raw material are Two-layer pipe has inner tube, outer tube, several muscle for connecting inner and outer tubes, highly efficient, and aluminium section bar may be used Manufacture, radiating efficiency is high, and processing and manufacturing difficulty is low.

Likewise, the heat dissipation for air hole is formd between adjacent second protrusion 22, between adjacent third protrusion 32 Channel, and connected with first passage.

It is adjusted for ease of the irradiating angle of lamp, the outer surface of third tube body 31 is provided with the third for connecting bracket Mounting hole and several adjusting holes for adjusting lamp holder 3 and support angle, several adjusting holes are circumferentially disposed along third mounting hole.

Third tube body 31 is made to turn to required irradiating angle around third mounting hole, then makes stent and corresponding adjusting hole Connection, and then required irradiating angle is made to be maintained, meet requirement.

To realize the heat dissipation to lamp, radiator 4, shape such as Fig. 2, Fig. 5 institute of radiator 4 are additionally provided in third tube body 31 Show.

Radiator 4 includes the 4th disk 41, and edge and the third recess portion 33 of the 4th disk 41 overlap, the end of the 4th disk 41 Face is abutted with the end face of the first tube body 11, and the second sealing ring is provided between the 4th disk 41 and the first tube body 11.

To prevent the second sealing ring from moving, the first tube body 11 is provided with the second groove 17 of accommodating second sealing ring.

Since under normal conditions, the 4th disk 41 can connect illuminator 9, if the 4th disk 41 occurs partially with connector 1 It moves, whole radiation response can be influenced.

To prevent the 4th disk 41 from deviating, the first protrusion 12 is provided with the diameter to the 4th disk 41 close to the side of lamp holder 3 To the second stopper protrusion 18 limited.

If the first sealing ring and the second sealing ring selected are consistent, connector 1 can also be made to be arranged to symmetrical structure, filled Timing does not need to distinguish the both forward and reverse directions of connector 1.

First sealing ring and the second sealing ring are arranged on the both ends of the first tube body 11, when connector 1 and lampshade 2 and lamp holder 3 After assembling, the first sealing ring and the second sealed ring deformation amount have accuracy of manufacture decision, due to connector 1 and lampshade 2 and lamp Seat 3 is machining, and size uniform is consistent, so the deflection of the first sealing ring and the second sealing ring is highly uniform, to lamp Sealing effect it is good,

For convenience of the arrangement of illuminator 9, the side of the 4th disk 41 towards the first tube body 11 is provided with fourth annular plate 5, Fourth annular plate 5 is connect backwards to the side of the 4th disk 41 with illuminator 9.

Illuminator 9 on fourth annular plate 5 can be arranged as required to multiple.

Illuminator 9 is usually LED chip, is also associated with lens 7, lens 7 are gathered and are oriented to light.

Correspondingly, fourth annular plate 5 is provided with the 4th housing 6 of accommodating lens 7, the 4th housing 6 is provided with clamping the 4th First snap-arms 61 of the inner surface of annular slab 5 and the second snap-arms of the outer surface of clamping fourth annular plate 5.

4th housing 6 is connected by snap fit with fourth annular plate 5 and replaces the bonding of routine, is avoided glue overflow, is subtracted Time spent by the glue solidifies less.

Simultaneously as the clamping position of the 4th housing 6 and fourth annular plate 5 only has at 2 points, the structure letter of the 4th housing 6 Single, manufacture is at low cost.

In addition, the first snap-arms 61 and the second snap-arms are stuck in the inner surface and the outer surface of fourth annular plate 5, also make It obtains the 4th housing 6 to fix, it is not easy to slide.

In addition, the first snap-arms 61 and the second snap-arms are stuck in the inner surface and the outer surface of fourth annular plate 5, also make The easily manufactured of fourth annular plate 5 is obtained, processing content is few.

To reduce the height of lamp so that lamp it is compact-sized, the 4th disk 41 is provided with the of accommodating first snap-arms 61 4th annular groove 43 of three annular grooves 42 and accommodating second snap-arms, 42 and the 4th annular groove 43 of third annular groove are coaxially disposed.

It, can be with after the 4th housing 6 is assembled with fourth annular plate 5, then when 5 and the 4th disk 41 of fourth annular plate is assembled The side wall of 42 and the 4th annular groove 43 of third annular groove is made to be contacted respectively at the surface of the first snap-arms 61 and the second snap-arms, prevents the One snap-arms 61 and the deformation of the second snap-arms, avoid the 4th housing 6 from being detached from fourth annular plate 5.

To improve the heat dissipation effect of lamp, the 4th disk 41 is provided with several 4th thermal columns backwards to the side of the first tube body 11 44。

Third protrusion 32 extends along the axis direction of third tube body 31, can pass air through and exchange heat with the 4th thermal column 44 Afterwards, the space between third protrusion 32, the space between the first protrusion 12 enter back into the sky between the second protrusion 22 Between, finally drain into the outside of lamp.

Due to the more or less heat for having received connector 1 or lamp holder 3 and transmitting of the air in lamp holder 3, absorb the 4th and dissipate The ability of heat reduces at plume 44, in this regard, several 4th thermal columns 44 extend to the outside of third tube body 31, in other words, I.e. along vertically with being seen on the axis direction of third tube body 31, the end of the 4th thermal column 44 is prominent, positioned at third tube body 31 Outer.

This air for allowing on the outside of lamp is contacted with the 4th thermal column 44, improves heat dissipation effect.

Since the heat dissipation area of the 4th thermal column 44 is limited, and air flows through the 4th thermal column 44 can also generate vortex, Cause the unordered flowing of air, it is impossible to air be made rapidly to be flowed out after heat is absorbed.

In this regard, as shown in Fig. 2, Fig. 5, Fig. 6, the 4th disk 41 is provided with the 4th cooling fin of the 4th thermal column 44 of connection 45, the thickness of the 4th cooling fin 45 is less than the radial dimension of the 4th thermal column 44.

4th cooling fin 45 had both increased heat dissipation area, and also air flowing is oriented to, and was conducive to improve heat transfer efficiency, together When, the 4th cooling fin 45 also adds the intensity of the 4th thermal column 44, and the 4th thermal column 44 is avoided to be generated when air flows and is shaken Dynamic noise.

Between avoiding the 4th cooling fin 45 to air generation blocking while conveniently directing the air into the 4th thermal column 44, the Four cooling fins 45 are set to the 4th thermal column 44 towards 41 middle part side of the 4th disk.

Due to that can form viscous layer 47 on the surface of the 4th cooling fin 45 when air is flowed along the 4th cooling fin 45 namely go out The situation that now flowing velocity of the air on 45 surface of the 4th cooling fin of contact is close to zero is unfavorable for cross-ventilation heat dissipation.

In this regard, the surface of the 4th cooling fin 45 be provided with that several axis directions along the 4th thermal column 44 extend it is the 4th recessed Portion 46.

This allows for viscous layer 47 and is bent, and then fireballing air impacts viscous layer 47 so that viscous The thickness of layer 47 reduces, convenient for heat dissipation.

To be limited to the 4th disk 41, the inside of third tube body 31 is additionally provided with third annulus 34, third annulus 34 Inside house several 4th thermal columns 44 and pass through, the outside of third annulus 34 is connect with third protrusion 32, third annulus 34 End face is abutted with the 4th disk 41.

The outside of third annulus 34 is connect with third protrusion 32, can increase the intensity of lamp holder 3, meanwhile, third annulus 34 Inside house the 4th thermal column 44 and pass through, can be by the contact with the 4th thermal column 44 of third annulus 34 to the 4th disk 41 It is limited, prevents the generation of the 4th disk 41 from moving radially.

However, limited the 4th disk 41 by limiting the 4th thermal column 44, and unreliable, and can be to heat dissipation The accuracy of manufacture of device 4 is put forward higher requirements, and increases cost.

In this regard, third annulus 34 is provided with the 4th groove of the radial direction limiting to the 4th disk 41.4th groove can be straight It connects processing or molds, size corresponds to the outer diameter of the 4th disk 41, accurate positioning.

4th groove shapes are simple, drawn it can be readily appreciated that event is not shown.

Above example is only to illustrate the technical solution of the utility model and is not intended to limit it, all without departing from this Any modification of utility model spirit and scope or equivalent replacement should all cover the range in technical solutions of the utility model It is interior.

Claims

1. a kind of compact-sized efficient lamp of heat dissipation, including lamp holder (3), lampshade (2), the illuminator (9) being arranged in lamp holder (3) With the eyeglass (8) being arranged in lampshade (2), which is characterized in that further include the connector by lamp holder (3) and lampshade (2) connection (1), connector (1) includes the first tube body (11), and the outer surface of the first tube body (11) is provided with several first raised (12), and first Raised (12) are provided with the second protrusion (13) for being clamped lampshade (2) and for being clamped lamp backwards to the side of the first tube body (11) The third protrusion (14) of seat (3), the second protrusion (13) and third protrusion (14) are set successively along the axis direction of the first tube body (11) It puts.

2. the compact-sized efficient lamp of heat dissipation of one kind according to claim 1, which is characterized in that several first protrusions (12) along the circumferentially disposed of the first tube body (11), several first raised (12) extend along the axis direction of the first tube body (11), phase Neighbour first raised (12) forms the first passage of heat dissipation.

3. the compact-sized efficient lamp of heat dissipation of one kind according to claim 1, which is characterized in that first tube body (11) One end of lampshade (2) is provided with the first sealing ring, the first sealing ring is abutted with eyeglass (8), and the first tube body (11) is provided with The first groove (15) of accommodating first sealing ring.

4. the compact-sized efficient lamp of heat dissipation of one kind according to claim 3, which is characterized in that first groove (15) Side wall connect the first tube body (11) outer surface.

5. the compact-sized efficient lamp of heat dissipation of one kind according to claim 3, which is characterized in that described first raised (12) The side of lampshade (2) is provided with the first stopper protrusion (16) limited to the radial direction of eyeglass (8).

6. the compact-sized efficient lamp of heat dissipation of one kind according to claim 1, which is characterized in that the lampshade (2) includes Second tube body (21), the second tube body (21) inner surface are provided with several second raised (22), and second raised (22) are provided with clamping The second recess portion (23) of second protrusion (13), is provided with the second annulus (24) in the second tube body (21), the second annulus (24) it is outer Surface is connect with second raised (22), and the end face of the second annulus (24) is abutted with eyeglass (8), the second annulus (24) and the second recess portion (23) it is set gradually along the axis direction of the second tube body (21), the quantity of second raised (22) and position and the first protrusion (12) are right It should set.

7. the compact-sized efficient lamp of heat dissipation of one kind according to claim 1, which is characterized in that the lamp holder (3) includes Third tube body (31), the inner surface of third tube body (31) are provided with several third protrusions (32), and third protrusion (32) is provided with card It connects the third recess portion (33) of third protrusion (14), is additionally provided with radiator (4) in third tube body (31), radiator (4) includes the Four disks (41), edge and the third recess portion (33) of the 4th disk (41) overlap, end face and the first tube body of the 4th disk (41) (11) end face abuts, and the second sealing ring is provided between the 4th disk (41) and the first tube body (11), the first tube body (11) is set The second groove (17) of accommodating second sealing ring is equipped with, first raised (12) are provided with close to the side of lamp holder (3) justifies to the 4th The second stopper protrusion (18) that the radial direction of disk (41) is limited.

8. the compact-sized efficient lamp of heat dissipation of one kind according to claim 7, which is characterized in that the 4th disk (41) The side of first tube body (11) is provided with fourth annular plate (5), fourth annular plate (5) is backwards to the side of the 4th disk (41) It is connect with illuminator (9), fourth annular plate (5) is provided with the 4th housing (6) of accommodating lens (7), and the 4th housing (6) is provided with It is clamped the second card of the first snap-arms (61) of the inner surface of fourth annular plate (5) and the outer surface of clamping fourth annular plate (5) Connect arm, the 4th disk (41) be provided with accommodating first snap-arms (61) third annular groove (42) and accommodating second snap-arms the 4th Annular groove (43), third annular groove (42) and the coaxial arrangement of the 4th annular groove (43).

9. the compact-sized efficient lamp of heat dissipation of one kind according to claim 7, which is characterized in that the 4th disk (41) The side of first tube body (11) is provided with several 4th thermal columns (44), several 4th thermal columns (44) extend to third pipe The outside of body (31), the 4th disk (41) are provided with the 4th cooling fin (45) of the 4th thermal column (44) of connection, the 4th cooling fin (45) thickness is less than the radial dimension of the 4th thermal column (44).

10. the compact-sized efficient lamp of heat dissipation of one kind according to claim 9, which is characterized in that the 4th cooling fin (45) surface is provided with the 4th recess portion (46) that several axis directions along the 4th thermal column (44) extend.